20525967

素因数分解:

$3^5\times 7^1\times {\mathrm{11}}^1\times {\mathrm{1097}}^1$

素因数の和:1130

約数の個数: 48

約数和(自身を含む): 38368512

約数和(自身を除く): 17842545

約数列:

[1, 3, 7, 9, 11, 21, 27, 33, 63, 77, 81, 99, 189, 231, 243, 297, 567, 693, 891, 1097, 1701, 2079, 2673, 3291, 6237, 7679, 9873, 12067, 18711, 23037, 29619, 36201, 69111, 84469, 88857, 108603, 207333, 253407, 266571, 325809, 621999, 760221, 977427, 1865997, 2280663, 2932281, 6841989, 20525967]

約数ペア:

[(1, 20525967), (3, 6841989), (7, 2932281), (9, 2280663), (11, 1865997), (21, 977427), (27, 760221), (33, 621999), (63, 325809), (77, 266571), (81, 253407), (99, 207333), (189, 108603), (231, 88857), (243, 84469), (297, 69111), (567, 36201), (693, 29619), (891, 23037), (1097, 18711), (1701, 12067), (2079, 9873), (2673, 7679), (3291, 6237)]